sin square theta + cos square theta = 1 How to prove?

Why does sine squared plus cosine squared equal 1?

sin square theta + cos square theta barabar 1 kaise hota hai/sin square theta + cos square theta = 1

Prove: sin^2theta + cos^2theta = 1 | Trigonometric Identities | Class 10 Maths

Q66 | Prove that (1-sin⁡θ )(1+sin⁡θ )=cos^2⁡θ | 1 - sin square theta into 1 + sin theta = cos square

Derive an identity for cos(2theta), done fast in 56 seconds

Q52 | Prove that (1-tan^2⁡θ)/(1+tan^2⁡θ)=cos^2⁡θ-sin^2⁡θ | 1 - tan square theta by 1 + tan square

Proof of cos^2 theta + sin^2 theta = 1

Q17 | Prove that sin square theta plus 1 by 1 + tan square theta = 1 | prove sin^2⁡θ+1/(1+tan^2⁡θ)=1

Prove that Sin8 theta - cos8 theta = (sin2 theta - cos2 theta)(1-2sin2 theta + cos2 theta)

Why does sine squared theta plus cosine squared theta equal 1?

Q20 | Prove that cot square theta - 1 by sin square theta = -1 | prove that cot^2⁡θ - 1/sin^2⁡θ = -1

`(sintheta + sin2theta)/(1+costheta+cos2theta)=tantheta`

Q44 | Prove that cos^2 theta/(1-tan theta)+sin^3 theta/(sin theta - cos theta)=1+sin theta cos theta

1-cosx = 2sin^2(x/2) trigonometric identites proof || 1-cos theta

Prove: cos^6 θ- sin^6 θ= cos2θ(1- 1/4 sin^2 2θ)

Prove sin square theta plus cos square theta =1 |sin²θ+cos²θ=1|trigonometry identities

Q94 | Prove that sin^6⁡θ+cos^6⁡θ+3sin^2⁡θcos^2⁡θ=1 | sin power 6 theta + cos power 6 theta + 3 sin

cot θ - tan θ = (2cos^2 θ - 1) / sin θ cos θ / 三角法 10 年生 を証明してください

Q3 | Prove that 1 + tan square theta into 1 - sin theta into 1 + sin theta = 1 | 1+tan^2⁡θ 1-sin⁡θ 1